In response to some of the questions, the exhaust is a custom stainless steel design that is ceramic coated due to heat issues. The firewall backwards needed to be reinforced with a billet upper cross member, lower trans support, reinforced shock towers, electric air conditioning, and several electrical/mechanical modifications and improvements over the stock roller. It took a long time and was a very difficult build. Not for the faint of heart or anyone hoping to build something like this on a budget.